Takanobu Muraguchi / USBDevice

USB device stack

Dependents:   USBMSD_step1 USBMSD_step1_5 picossd_step1_2cs

targets/TARGET_Silicon_Labs/src/em_usbdep.c@71:53949e6131f6, 2017-07-27 (annotated)

Committer:
Kojto
Date:
Thu Jul 27 12:14:04 2017 +0100
Revision:
71:53949e6131f6
Update libraries



Fixes the previous commmit, as some devices were not copied. USBDevice contains

now targets directory with all targets implementations

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 71:53949e6131f6 1 /**************************************************************************//**
Kojto 71:53949e6131f6 2 * @file em_usbdep.c
Kojto 71:53949e6131f6 3 * @brief USB protocol stack library, USB device endpoint handlers.
Kojto 71:53949e6131f6 4 * @version 3.20.14
Kojto 71:53949e6131f6 5 ******************************************************************************
Kojto 71:53949e6131f6 6 * @section License
Kojto 71:53949e6131f6 7 * <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b>
Kojto 71:53949e6131f6 8 *******************************************************************************
Kojto 71:53949e6131f6 9 *
Kojto 71:53949e6131f6 10 * Licensed under the Apache License, Version 2.0 (the "License");
Kojto 71:53949e6131f6 11 * you may not use this file except in compliance with the License.
Kojto 71:53949e6131f6 12 * You may obtain a copy of the License at
Kojto 71:53949e6131f6 13 *
Kojto 71:53949e6131f6 14 * http://www.apache.org/licenses/LICENSE-2.0
Kojto 71:53949e6131f6 15 *
Kojto 71:53949e6131f6 16 * Unless required by applicable law or agreed to in writing, software
Kojto 71:53949e6131f6 17 * distributed under the License is distributed on an "AS IS" BASIS,
Kojto 71:53949e6131f6 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Kojto 71:53949e6131f6 19 * See the License for the specific language governing permissions and
Kojto 71:53949e6131f6 20 * limitations under the License.
Kojto 71:53949e6131f6 21 *
Kojto 71:53949e6131f6 22 ******************************************************************************/
Kojto 71:53949e6131f6 23
Kojto 71:53949e6131f6 24 #include "em_device.h"
Kojto 71:53949e6131f6 25 #if defined( USB_PRESENT ) && ( USB_COUNT == 1 )
Kojto 71:53949e6131f6 26 #include "em_usb.h"
Kojto 71:53949e6131f6 27 #if defined( USB_DEVICE )
Kojto 71:53949e6131f6 28
Kojto 71:53949e6131f6 29 #include "em_usbtypes.h"
Kojto 71:53949e6131f6 30 #include "em_usbhal.h"
Kojto 71:53949e6131f6 31 #include "em_usbd.h"
Kojto 71:53949e6131f6 32
Kojto 71:53949e6131f6 33 #ifdef USB_USE_PRINTF
Kojto 71:53949e6131f6 34 static const char *epStatusStr[] = {
Kojto 71:53949e6131f6 35 "IDLE","TRANS","RECV","IN_S","OUT_S"
Kojto 71:53949e6131f6 36 };
Kojto 71:53949e6131f6 37 #endif
Kojto 71:53949e6131f6 38
Kojto 71:53949e6131f6 39 /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
Kojto 71:53949e6131f6 40
Kojto 71:53949e6131f6 41 /*
Kojto 71:53949e6131f6 42 * USBDEP_Ep0Handler() is called each time a packet has been transmitted
Kojto 71:53949e6131f6 43 * or recieved on the default endpoint.
Kojto 71:53949e6131f6 44 * A state machine navigate us through the phases of a control transfer
Kojto 71:53949e6131f6 45 * according to "chapter 9" in the USB spec.
Kojto 71:53949e6131f6 46 */
Kojto 71:53949e6131f6 47 #if !defined( USB_DOEP0INT_STUPPKTRCVD )
Kojto 71:53949e6131f6 48 void USBDEP_Ep0Handler( USBD_Device_TypeDef *device )
Kojto 71:53949e6131f6 49 {
Kojto 71:53949e6131f6 50 int status;
Kojto 71:53949e6131f6 51 USBD_Ep_TypeDef *ep;
Kojto 71:53949e6131f6 52 static bool statusIn;
Kojto 71:53949e6131f6 53 static uint32_t xferred;
Kojto 71:53949e6131f6 54 static USB_XferCompleteCb_TypeDef callback;
Kojto 71:53949e6131f6 55
Kojto 71:53949e6131f6 56 ep = &device->ep[ 0 ];
Kojto 71:53949e6131f6 57
Kojto 71:53949e6131f6 58 #ifdef __MBED__
Kojto 71:53949e6131f6 59
Kojto 71:53949e6131f6 60 (void)xferred;
Kojto 71:53949e6131f6 61 (void)statusIn;
Kojto 71:53949e6131f6 62 (void)status;
Kojto 71:53949e6131f6 63
Kojto 71:53949e6131f6 64 USB_PRINTF("USBDEP: ep0 %s, rem %ld, z %d\n", epStatusStr[ep->state], ep->remaining, ep->zlp);
Kojto 71:53949e6131f6 65
Kojto 71:53949e6131f6 66 if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
Kojto 71:53949e6131f6 67 {
Kojto 71:53949e6131f6 68 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 69
Kojto 71:53949e6131f6 70 if ( ep->xferCompleteCb )
Kojto 71:53949e6131f6 71 {
Kojto 71:53949e6131f6 72 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 73 ep->xferCompleteCb = NULL;
Kojto 71:53949e6131f6 74 callback( USB_STATUS_OK, ep->xferred, ep->remaining );
Kojto 71:53949e6131f6 75 }
Kojto 71:53949e6131f6 76
Kojto 71:53949e6131f6 77 USBDHAL_ReenableEp0Setup(device);
Kojto 71:53949e6131f6 78 }
Kojto 71:53949e6131f6 79 else
Kojto 71:53949e6131f6 80 {
Kojto 71:53949e6131f6 81 device->callbacks->setupCmd(device->setup);
Kojto 71:53949e6131f6 82 }
Kojto 71:53949e6131f6 83
Kojto 71:53949e6131f6 84 #else /* not __MBED__ */
Kojto 71:53949e6131f6 85
Kojto 71:53949e6131f6 86 switch ( ep->state )
Kojto 71:53949e6131f6 87 {
Kojto 71:53949e6131f6 88 case D_EP_IDLE:
Kojto 71:53949e6131f6 89 ep->remaining = 0;
Kojto 71:53949e6131f6 90 ep->zlp = 0;
Kojto 71:53949e6131f6 91 callback = NULL;
Kojto 71:53949e6131f6 92 statusIn = false;
Kojto 71:53949e6131f6 93
Kojto 71:53949e6131f6 94 status = USBDCH9_SetupCmd( device );
Kojto 71:53949e6131f6 95
Kojto 71:53949e6131f6 96 if ( status == USB_STATUS_REQ_ERR )
Kojto 71:53949e6131f6 97 {
Kojto 71:53949e6131f6 98 ep->in = true;
Kojto 71:53949e6131f6 99 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 100 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 101 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 102 USBDHAL_ReenableEp0Setup( device ); /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 103 }
Kojto 71:53949e6131f6 104 else /* ( Status == USB_STATUS_OK ) */
Kojto 71:53949e6131f6 105 {
Kojto 71:53949e6131f6 106 if ( (ep->state == D_EP_RECEIVING) || (ep->state == D_EP_TRANSMITTING) )
Kojto 71:53949e6131f6 107 {
Kojto 71:53949e6131f6 108 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 109 }
Kojto 71:53949e6131f6 110
Kojto 71:53949e6131f6 111 if ( ep->state != D_EP_RECEIVING )
Kojto 71:53949e6131f6 112 {
Kojto 71:53949e6131f6 113 if ( ep->remaining )
Kojto 71:53949e6131f6 114 {
Kojto 71:53949e6131f6 115 /* Data will be sent to host, check if a ZLP must be appended */
Kojto 71:53949e6131f6 116 if ( ( ep->remaining < device->setup->wLength ) &&
Kojto 71:53949e6131f6 117 ( ep->remaining % ep->packetSize == 0 ) )
Kojto 71:53949e6131f6 118 {
Kojto 71:53949e6131f6 119 ep->zlp = 1;
Kojto 71:53949e6131f6 120 }
Kojto 71:53949e6131f6 121 }
Kojto 71:53949e6131f6 122 else
Kojto 71:53949e6131f6 123 {
Kojto 71:53949e6131f6 124 /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 125 USBDHAL_ReenableEp0Setup( device );
Kojto 71:53949e6131f6 126
Kojto 71:53949e6131f6 127 /* No data stage, a ZLP may have been sent. If not, send one */
Kojto 71:53949e6131f6 128
Kojto 71:53949e6131f6 129 xferred = 0;
Kojto 71:53949e6131f6 130 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 131 {
Kojto 71:53949e6131f6 132 USBD_Write( 0, NULL, 0, NULL ); /* ACK to host */
Kojto 71:53949e6131f6 133 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 134 }
Kojto 71:53949e6131f6 135 else
Kojto 71:53949e6131f6 136 {
Kojto 71:53949e6131f6 137 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 138 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 139 }
Kojto 71:53949e6131f6 140 }
Kojto 71:53949e6131f6 141 }
Kojto 71:53949e6131f6 142 }
Kojto 71:53949e6131f6 143 break;
Kojto 71:53949e6131f6 144
Kojto 71:53949e6131f6 145 case D_EP_RECEIVING:
Kojto 71:53949e6131f6 146 if ( ep->remaining )
Kojto 71:53949e6131f6 147 {
Kojto 71:53949e6131f6 148 /* There is more data to receive */
Kojto 71:53949e6131f6 149 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 150 }
Kojto 71:53949e6131f6 151 else
Kojto 71:53949e6131f6 152 {
Kojto 71:53949e6131f6 153 status = USB_STATUS_OK;
Kojto 71:53949e6131f6 154 if ( callback != NULL )
Kojto 71:53949e6131f6 155 {
Kojto 71:53949e6131f6 156 status = callback( USB_STATUS_OK, ep->xferred, 0 );
Kojto 71:53949e6131f6 157 callback = NULL;
Kojto 71:53949e6131f6 158 }
Kojto 71:53949e6131f6 159
Kojto 71:53949e6131f6 160 if ( status != USB_STATUS_OK )
Kojto 71:53949e6131f6 161 {
Kojto 71:53949e6131f6 162 ep->in = true;
Kojto 71:53949e6131f6 163 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 164 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 165 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 166 USBDHAL_ReenableEp0Setup( device ); /* Prepare for next SETUP pkt. */
Kojto 71:53949e6131f6 167 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 168 }
Kojto 71:53949e6131f6 169 else /* Everything OK, send a ZLP (ACK) to host */
Kojto 71:53949e6131f6 170 {
Kojto 71:53949e6131f6 171 USBDHAL_ReenableEp0Setup( device );/* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 172
Kojto 71:53949e6131f6 173 ep->state = D_EP_IDLE; /* USBD_Write() sets state back*/
Kojto 71:53949e6131f6 174 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 175 USBD_Write( 0, NULL, 0, NULL );
Kojto 71:53949e6131f6 176 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 177 }
Kojto 71:53949e6131f6 178 }
Kojto 71:53949e6131f6 179 break;
Kojto 71:53949e6131f6 180
Kojto 71:53949e6131f6 181 case D_EP_TRANSMITTING:
Kojto 71:53949e6131f6 182 if ( ep->remaining )
Kojto 71:53949e6131f6 183 {
Kojto 71:53949e6131f6 184 /* There is more data to transmit */
Kojto 71:53949e6131f6 185 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 186 }
Kojto 71:53949e6131f6 187 else
Kojto 71:53949e6131f6 188 {
Kojto 71:53949e6131f6 189 /* All data transferred, is a ZLP packet needed ? */
Kojto 71:53949e6131f6 190 if ( ep->zlp == 1 )
Kojto 71:53949e6131f6 191 {
Kojto 71:53949e6131f6 192 xferred = ep->xferred;
Kojto 71:53949e6131f6 193 ep->state = D_EP_IDLE; /* USBD_Write() sets state back */
Kojto 71:53949e6131f6 194 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 195 USBD_Write( 0, NULL, 0, NULL ); /* Send ZLP */
Kojto 71:53949e6131f6 196 ep->zlp = 2;
Kojto 71:53949e6131f6 197 }
Kojto 71:53949e6131f6 198 else
Kojto 71:53949e6131f6 199 {
Kojto 71:53949e6131f6 200 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 201 {
Kojto 71:53949e6131f6 202 xferred = ep->xferred;
Kojto 71:53949e6131f6 203 }
Kojto 71:53949e6131f6 204
Kojto 71:53949e6131f6 205 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 206 USBD_Read( 0, NULL, 0, NULL ); /* Get ZLP packet (ACK) from host */
Kojto 71:53949e6131f6 207 statusIn = true;
Kojto 71:53949e6131f6 208 ep->state = D_EP0_OUT_STATUS;
Kojto 71:53949e6131f6 209 }
Kojto 71:53949e6131f6 210 }
Kojto 71:53949e6131f6 211 break;
Kojto 71:53949e6131f6 212
Kojto 71:53949e6131f6 213 case D_EP0_IN_STATUS:
Kojto 71:53949e6131f6 214 case D_EP0_OUT_STATUS:
Kojto 71:53949e6131f6 215 if ( statusIn )
Kojto 71:53949e6131f6 216 {
Kojto 71:53949e6131f6 217 USBDHAL_ReenableEp0Setup( device );
Kojto 71:53949e6131f6 218 }
Kojto 71:53949e6131f6 219
Kojto 71:53949e6131f6 220 if ( callback != NULL )
Kojto 71:53949e6131f6 221 {
Kojto 71:53949e6131f6 222 callback( USB_STATUS_OK, xferred, 0 );
Kojto 71:53949e6131f6 223 }
Kojto 71:53949e6131f6 224
Kojto 71:53949e6131f6 225 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 226 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 227 break;
Kojto 71:53949e6131f6 228
Kojto 71:53949e6131f6 229 default:
Kojto 71:53949e6131f6 230 EFM_ASSERT( false );
Kojto 71:53949e6131f6 231 break;
Kojto 71:53949e6131f6 232 }
Kojto 71:53949e6131f6 233 #endif /* __MBED__ */
Kojto 71:53949e6131f6 234 }
Kojto 71:53949e6131f6 235 #endif
Kojto 71:53949e6131f6 236
Kojto 71:53949e6131f6 237 #if defined( USB_DOEP0INT_STUPPKTRCVD )
Kojto 71:53949e6131f6 238 void USBDEP_Ep0Handler( USBD_Device_TypeDef *device )
Kojto 71:53949e6131f6 239 {
Kojto 71:53949e6131f6 240 int status;
Kojto 71:53949e6131f6 241 USBD_Ep_TypeDef *ep;
Kojto 71:53949e6131f6 242 static uint32_t xferred;
Kojto 71:53949e6131f6 243 static USB_XferCompleteCb_TypeDef callback;
Kojto 71:53949e6131f6 244
Kojto 71:53949e6131f6 245 #ifdef __MBED__
Kojto 71:53949e6131f6 246
Kojto 71:53949e6131f6 247 (void)xferred;
Kojto 71:53949e6131f6 248 (void)status;
Kojto 71:53949e6131f6 249
Kojto 71:53949e6131f6 250 ep = &device->ep[ 0 ];
Kojto 71:53949e6131f6 251
Kojto 71:53949e6131f6 252 if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
Kojto 71:53949e6131f6 253 {
Kojto 71:53949e6131f6 254 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 255
Kojto 71:53949e6131f6 256 if ( ep->xferCompleteCb )
Kojto 71:53949e6131f6 257 {
Kojto 71:53949e6131f6 258 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 259 ep->xferCompleteCb = NULL;
Kojto 71:53949e6131f6 260 callback( USB_STATUS_OK, ep->xferred, ep->remaining );
Kojto 71:53949e6131f6 261 }
Kojto 71:53949e6131f6 262
Kojto 71:53949e6131f6 263 USBDHAL_StartEp0Setup( dev );
Kojto 71:53949e6131f6 264 }
Kojto 71:53949e6131f6 265 else
Kojto 71:53949e6131f6 266 {
Kojto 71:53949e6131f6 267 device->callbacks->setupCmd(device->setup);
Kojto 71:53949e6131f6 268 }
Kojto 71:53949e6131f6 269
Kojto 71:53949e6131f6 270 #else
Kojto 71:53949e6131f6 271
Kojto 71:53949e6131f6 272 ep = &device->ep[ 0 ];
Kojto 71:53949e6131f6 273
Kojto 71:53949e6131f6 274 switch ( ep->state )
Kojto 71:53949e6131f6 275 {
Kojto 71:53949e6131f6 276 case D_EP_IDLE:
Kojto 71:53949e6131f6 277 ep->zlp = 0;
Kojto 71:53949e6131f6 278 ep->remaining = 0;
Kojto 71:53949e6131f6 279 callback = NULL;
Kojto 71:53949e6131f6 280
Kojto 71:53949e6131f6 281 status = USBDCH9_SetupCmd( device );
Kojto 71:53949e6131f6 282
Kojto 71:53949e6131f6 283 if ( status == USB_STATUS_REQ_ERR )
Kojto 71:53949e6131f6 284 {
Kojto 71:53949e6131f6 285 ep->in = true;
Kojto 71:53949e6131f6 286 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 287 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 288 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 289 USBDHAL_StartEp0Setup( dev ); /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 290 }
Kojto 71:53949e6131f6 291 else /* ( Status == USB_STATUS_OK ) */
Kojto 71:53949e6131f6 292 {
Kojto 71:53949e6131f6 293 if ( (ep->state == D_EP_RECEIVING) || (ep->state == D_EP_TRANSMITTING) )
Kojto 71:53949e6131f6 294 {
Kojto 71:53949e6131f6 295 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 296 }
Kojto 71:53949e6131f6 297
Kojto 71:53949e6131f6 298 if ( ep->state != D_EP_RECEIVING )
Kojto 71:53949e6131f6 299 {
Kojto 71:53949e6131f6 300 if ( ep->remaining )
Kojto 71:53949e6131f6 301 {
Kojto 71:53949e6131f6 302 /* Data will be sent to host, check if a ZLP must be appended */
Kojto 71:53949e6131f6 303 if ( ( ep->remaining < device->setup->wLength ) &&
Kojto 71:53949e6131f6 304 ( ep->remaining % ep->packetSize == 0 ) )
Kojto 71:53949e6131f6 305 {
Kojto 71:53949e6131f6 306 ep->zlp = 1;
Kojto 71:53949e6131f6 307 }
Kojto 71:53949e6131f6 308 }
Kojto 71:53949e6131f6 309 else
Kojto 71:53949e6131f6 310 {
Kojto 71:53949e6131f6 311 /* No data stage, a ZLP may have been sent. If not, send one */
Kojto 71:53949e6131f6 312 xferred = 0;
Kojto 71:53949e6131f6 313 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 314 {
Kojto 71:53949e6131f6 315 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 316 USBD_Write( 0, NULL, 0, NULL ); /* ACK to host */
Kojto 71:53949e6131f6 317 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 318 }
Kojto 71:53949e6131f6 319 }
Kojto 71:53949e6131f6 320 }
Kojto 71:53949e6131f6 321 }
Kojto 71:53949e6131f6 322 break;
Kojto 71:53949e6131f6 323
Kojto 71:53949e6131f6 324 case D_EP_RECEIVING:
Kojto 71:53949e6131f6 325 if ( ep->remaining )
Kojto 71:53949e6131f6 326 {
Kojto 71:53949e6131f6 327 ep->in = false;
Kojto 71:53949e6131f6 328 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 329 }
Kojto 71:53949e6131f6 330 else
Kojto 71:53949e6131f6 331 {
Kojto 71:53949e6131f6 332 status = USB_STATUS_OK;
Kojto 71:53949e6131f6 333 if ( callback != NULL )
Kojto 71:53949e6131f6 334 {
Kojto 71:53949e6131f6 335 status = callback( USB_STATUS_OK, ep->xferred, 0 );
Kojto 71:53949e6131f6 336 callback = NULL;
Kojto 71:53949e6131f6 337 }
Kojto 71:53949e6131f6 338
Kojto 71:53949e6131f6 339 if ( status != USB_STATUS_OK )
Kojto 71:53949e6131f6 340 {
Kojto 71:53949e6131f6 341 ep->in = true;
Kojto 71:53949e6131f6 342 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 343 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 344 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 345 USBDHAL_StartEp0Setup( dev ); /* Prepare for next SETUP pkt. */
Kojto 71:53949e6131f6 346 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 347 }
Kojto 71:53949e6131f6 348 else
Kojto 71:53949e6131f6 349 {
Kojto 71:53949e6131f6 350
Kojto 71:53949e6131f6 351 USBDHAL_StartEp0Setup( dev ); /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 352 ep->state = D_EP_IDLE; /* USBD_Write() sets state back */
Kojto 71:53949e6131f6 353 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 354 USBD_Write( 0, NULL, 0, NULL );
Kojto 71:53949e6131f6 355 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 356 }
Kojto 71:53949e6131f6 357 }
Kojto 71:53949e6131f6 358 break;
Kojto 71:53949e6131f6 359
Kojto 71:53949e6131f6 360 case D_EP_TRANSMITTING:
Kojto 71:53949e6131f6 361 if ( ep->remaining )
Kojto 71:53949e6131f6 362 {
Kojto 71:53949e6131f6 363 ep->in = true;
Kojto 71:53949e6131f6 364 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 365 }
Kojto 71:53949e6131f6 366 else
Kojto 71:53949e6131f6 367 {
Kojto 71:53949e6131f6 368 if ( ep->zlp == 1 )
Kojto 71:53949e6131f6 369 {
Kojto 71:53949e6131f6 370 xferred = ep->xferred;
Kojto 71:53949e6131f6 371 ep->state = D_EP_IDLE; /* USBD_Write() sets state back */
Kojto 71:53949e6131f6 372 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 373 USBD_Write( 0, NULL, 0, NULL ); /* Send ZLP */
Kojto 71:53949e6131f6 374 ep->zlp = 2;
Kojto 71:53949e6131f6 375 }
Kojto 71:53949e6131f6 376 else
Kojto 71:53949e6131f6 377 {
Kojto 71:53949e6131f6 378 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 379 {
Kojto 71:53949e6131f6 380 xferred = ep->xferred;
Kojto 71:53949e6131f6 381 }
Kojto 71:53949e6131f6 382
Kojto 71:53949e6131f6 383 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 384 USBD_Read( 0, NULL, 0, NULL ); /* Get ZLP packet (ACK) from host */
Kojto 71:53949e6131f6 385 ep->state = D_EP0_OUT_STATUS;
Kojto 71:53949e6131f6 386 }
Kojto 71:53949e6131f6 387 }
Kojto 71:53949e6131f6 388 break;
Kojto 71:53949e6131f6 389
Kojto 71:53949e6131f6 390 case D_EP0_IN_STATUS:
Kojto 71:53949e6131f6 391 if ( ( USB->DOEP0CTL & USB_DOEP0CTL_EPENA ) == 0 )
Kojto 71:53949e6131f6 392 {
Kojto 71:53949e6131f6 393 /* Prepare for more SETUP Packets */
Kojto 71:53949e6131f6 394 USBDHAL_StartEp0Setup( dev );
Kojto 71:53949e6131f6 395 }
Kojto 71:53949e6131f6 396 if ( callback != NULL )
Kojto 71:53949e6131f6 397 {
Kojto 71:53949e6131f6 398 callback( USB_STATUS_OK, xferred, 0 );
Kojto 71:53949e6131f6 399 }
Kojto 71:53949e6131f6 400 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 401 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 402 break;
Kojto 71:53949e6131f6 403
Kojto 71:53949e6131f6 404 case D_EP0_OUT_STATUS:
Kojto 71:53949e6131f6 405 USBDHAL_StartEp0Setup( dev ); /* Prepare for more SETUP Packets */
Kojto 71:53949e6131f6 406 if ( callback != NULL )
Kojto 71:53949e6131f6 407 {
Kojto 71:53949e6131f6 408 callback( USB_STATUS_OK, xferred, 0 );
Kojto 71:53949e6131f6 409 }
Kojto 71:53949e6131f6 410 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 411 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 412 break;
Kojto 71:53949e6131f6 413 }
Kojto 71:53949e6131f6 414 #endif /* __MBED__ */
Kojto 71:53949e6131f6 415 }
Kojto 71:53949e6131f6 416 #endif
Kojto 71:53949e6131f6 417
Kojto 71:53949e6131f6 418 /*
Kojto 71:53949e6131f6 419 * USBDEP_EpHandler() is called each time a packet has been transmitted
Kojto 71:53949e6131f6 420 * or recieved on an endpoint other than the default endpoint.
Kojto 71:53949e6131f6 421 */
Kojto 71:53949e6131f6 422 void USBDEP_EpHandler( uint8_t epAddr )
Kojto 71:53949e6131f6 423 {
Kojto 71:53949e6131f6 424 USB_XferCompleteCb_TypeDef callback;
Kojto 71:53949e6131f6 425 USBD_Ep_TypeDef *ep = USBD_GetEpFromAddr( epAddr );
Kojto 71:53949e6131f6 426
Kojto 71:53949e6131f6 427 if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
Kojto 71:53949e6131f6 428 {
Kojto 71:53949e6131f6 429 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 430 if ( ep->xferCompleteCb )
Kojto 71:53949e6131f6 431 {
Kojto 71:53949e6131f6 432 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 433 ep->xferCompleteCb = NULL;
Kojto 71:53949e6131f6 434 callback( USB_STATUS_OK, ep->xferred, ep->remaining );
Kojto 71:53949e6131f6 435 }
Kojto 71:53949e6131f6 436 }
Kojto 71:53949e6131f6 437 else
Kojto 71:53949e6131f6 438 {
Kojto 71:53949e6131f6 439 EFM_ASSERT( false );
Kojto 71:53949e6131f6 440 }
Kojto 71:53949e6131f6 441 }
Kojto 71:53949e6131f6 442
Kojto 71:53949e6131f6 443 /** @endcond */
Kojto 71:53949e6131f6 444
Kojto 71:53949e6131f6 445 #endif /* defined( USB_DEVICE ) */
Kojto 71:53949e6131f6 446 #endif /* defined( USB_PRESENT ) && ( USB_COUNT == 1 ) */